From: Quentin Schulz quentin.schulz@theobroma-systems.com
Automatically detect which MMC device (SD-Card or eMMC) was used to load U-Boot proper and load the environment from that MMC device instead of a hardcoded one.
Cc: Quentin Schulz foss+uboot@0leil.net Signed-off-by: Quentin Schulz quentin.schulz@theobroma-systems.com Reviewed-by: Kever Yang kever.yang@rock-chips.com --- .../puma_rk3399/puma-rk3399.c | 22 +++++++++++++++++++ 1 file changed, 22 insertions(+)
diff --git a/board/theobroma-systems/puma_rk3399/puma-rk3399.c b/board/theobroma-systems/puma_rk3399/puma-rk3399.c index ce3436b770..5e5e58c88e 100644 --- a/board/theobroma-systems/puma_rk3399/puma-rk3399.c +++ b/board/theobroma-systems/puma_rk3399/puma-rk3399.c @@ -113,6 +113,28 @@ static int setup_boottargets(void) return 0; }
+int mmc_get_env_dev(void) +{ + const char *boot_device = + ofnode_read_chosen_string("u-boot,spl-boot-device"); + + if (!boot_device) { + debug("%s: /chosen/u-boot,spl-boot-device not set\n", + __func__); + return CONFIG_SYS_MMC_ENV_DEV; + } + + debug("%s: booted from %s\n", __func__, boot_device); + + if (!strcmp(boot_device, "/mmc@fe320000")) + return 1; + + if (!strcmp(boot_device, "/mmc@fe330000")) + return 0; + + return CONFIG_SYS_MMC_ENV_DEV; +} + int misc_init_r(void) { const u32 cpuid_offset = 0x7;